Issue 42, 2023

A simplified and facile preparation method for the [Ca24Al28O64]4+(e)4 electride

Abstract

Wide application of novel materials often requires low-cost preparation methods. In this study, we present a simplified and facile preparation method for the [Ca24Al28O64]4+(e)4 electride material (C12A7:e). Successful preparation of the C12A7:e electride was confirmed by XRD patterns and magnetic behavior analysis. The concentration of electrons in the prepared C12A7:e powder was calculated to be approximately 2.23 × 1021 cm−3, as evaluated by iodometry and TPD. DFT calculations provided insight into the unique electronic structure of C12A7:e. Additionally, the substitution of the Ca reductant with CaH2 led to a reduction in the solid-state reaction temperature from 1100 to 950 °C, which can be attributed to thermodynamic effects such as a reduction in ΔG°.

Graphical abstract: A simplified and facile preparation method for the [Ca24Al28O64]4+(e−)4 electride

Supplementary files

Article information

Article type
Paper
Submitted
30 maig 2023
Accepted
20 jul. 2023
First published
21 jul. 2023

Dalton Trans., 2023,52, 15484-15488

A simplified and facile preparation method for the [Ca24Al28O64]4+(e)4 electride

X. Zhang, Y. Chen, Y. Sun, F. Wang, X. Wen and T. Ye, Dalton Trans., 2023, 52, 15484 DOI: 10.1039/D3DT01637D

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